Plants are looking terrible and idk why? Coco/Perl + salts

budtoker221

Well-Known Member
That's cool your experimenting, I did the same thing. I have to see stuff for myself, y'know. I've only been doing coco for a year, but I've found my best work comes from watering at least twice a day during flower. When the pot dries out, your EC will spike.
Besides this experiment I’ve not been letting the pots get bone dry, ( just noticeably lighter)
My local hydro store told me the other day to “aim for 60% dryback”
 

Rurumo

Well-Known Member
Besides this experiment I’ve not been letting the pots get bone dry, ( just noticeably lighter)
My local hydro store told me the other day to “aim for 60% dryback”
During flower in 2-3 gal pots of coco, feeding twice per day is the minimum. As coco dries, the EC rises, leading to an unstable environment for the roots and possible nutrient burn for your tips. Multi-feeding also keeps the PH stable and in the target zone for much longer than if you are allowing the coco to dry out, and it allows you to get excellent results with a low EC feed. The way you are feeding now would really work better with Promix than coco. I'd start feeding at 1 EC twice per day to LOTS of runoff and you will see an improvement in the new growth.
 

budtoker221

Well-Known Member
During flower in 2-3 gal pots of coco, feeding twice per day is the minimum. As coco dries, the EC rises, leading to an unstable environment for the roots and possible nutrient burn for your tips. Multi-feeding also keeps the PH stable and in the target zone for much longer than if you are allowing the coco to dry out, and it allows you to get excellent results with a low EC feed. The way you are feeding now would really work better with Promix than coco. I'd start feeding at 1 EC twice per day to LOTS of runoff and you will see an improvement in the new growth.
Before the coco I was using promix with added perlite and a few other additives sometimes and the best tasting herb was when I didn’t even water till runoff. The worst tasting was when I watered till runoff every day. There were other variables with those grows so I’m not 100% sure watering was all of it but that’s part of the reason I haven’t been watering till runoff as frequently, although I believe smaller pots dry out faster actually I did have one grow in a small pot (1.5) that I watered till runoff each day that ended up decent. I don’t doubt your methods of watering twice a day I know there’s other variables also like how finely the coco is milled.
The hydro store guys said 60% dry back sounded like it was some sort of industry standard.
 
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1212ham

Well-Known Member
Hey! I am hand watering, we're in the middle of winter so I haven't been hand watering them daily. I aim for about 10-20% run off.


Should I let them dry out before plain water flushing or should I go ahead and do that tonight?
Don't let coco dry and never use plain water... coco is a unique medium. See post #22, Rurumo knows coco.

 
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twentyeight.threefive

Well-Known Member
Before the coco I was using promix with added perlite and a few other additives sometimes and the best tasting herb was when I didn’t even water till runoff. The worst tasting was when I watered till runoff every day. There were other variables with those grows so I’m not 100% sure watering was all of it but that’s part of the reason I haven’t been watering till runoff as frequently, although I believe smaller pots dry out faster actually I did have one grow in a small pot (1.5) that I watered till runoff each day that ended up decent. I don’t doubt your methods of watering twice a day I know there’s other variables also like how finely the coco is milled.
The hydro store guys said 60% dry back sounded like it was some sort of industry standard.
I’d stop taking any advice from your hydro store. They obviously have no idea how to treat coco.
 

twentyeight.threefive

Well-Known Member
Haven't started yet xD

I'll plain water flush them tonight and then start with the daily feeds
Do not flush your containers with plain water. Mix up a balanced feed according to the nutrient manufacturer specifications and dilute it down to 1.0 EC and flush them with that. Resume feeding at least DAILY with balanced feed around 1.2 EC. I like to pH to 6.0.

BTW what does extra rain water have to do with your tap water pH? What are you using for lights and how close are they to the canopy?
 

YourStonerBuddy

Well-Known Member
Do not flush your containers with plain water. Mix up a balanced feed according to the nutrient manufacturer specifications and dilute it down to 1.0 EC and flush them with that. Resume feeding at least DAILY with balanced feed around 1.2 EC. I like to pH to 6.0.

BTW what does extra rain water have to do with your tap water pH? What are you using for lights and how close are they to the canopy?
Wish i saw this before flushing the plants with plain water xD

Another grower buddy of mine told me his tap water PH has raised and it could possibly be all the rain we're getting in our area, I checked mine and it was 8/9ph. I am using LED QBs currently only running one board at full strength (240W) and its about 40cm from the canopy
 

Snickerpus

Active Member
Wish i saw this before flushing the plants with plain water xD

Another grower buddy of mine told me his tap water PH has raised and it could possibly be all the rain we're getting in our area, I checked mine and it was 8/9ph. I am using LED QBs currently only running one board at full strength (240W) and its about 40cm from the canopy
You have crap buddies and suppliers, they know shit
 

twentyeight.threefive

Well-Known Member
Wish i saw this before flushing the plants with plain water xD

Another grower buddy of mine told me his tap water PH has raised and it could possibly be all the rain we're getting in our area, I checked mine and it was 8/9ph. I am using LED QBs currently only running one board at full strength (240W) and its about 40cm from the canopy
Tap water comes from the town/city water distribution center. Rain water has nothing to do with it.

I’d still give them a good flush with a low EC feed and then continue to feed them daily. Continue to pH or check the pH to verify it’s proper before feeding every time.

I’d also bring the light up to about 60cm.

What nutrients are you feeding them and amounts?
 

budtoker221

Well-Known Member
Op, try increasing the leaf temp if you can. If you can’t increase ambient air temp with a heater throw an old school halogen/ incandescent bulb (or any bulb that isn’t LED if you can find one) in the tent and hang it right near the plant. This will gives the leaves some radiant heat.
I had a seedling that looked like your plant that I had in too wet a soil and too cool temps for led (22) and it perked right up after I put a 65w halogen flood light right over it.
 
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YourStonerBuddy

Well-Known Member
Hey everyone! My plants are still looking terrible :(

I've managed to raise my temps to 24-27C lights on and 20-22C lights off, I did a plain water flush last week Tuesday and started with daily feeds to run off everyday since then. Its been 9 days and my plants are making no progress.

Im kinda stuck and puzzled on what to do next
 

ec121

Well-Known Member
Hey everyone! My plants are still looking terrible :(

I've managed to raise my temps to 24-27C lights on and 20-22C lights off, I did a plain water flush last week Tuesday and started with daily feeds to run off everyday since then. Its been 9 days and my plants are making no progress.

Im kinda stuck and puzzled on what to do next
What is the EC of your feed and what is the runoff EC?

Pics?
 

budtoker221

Well-Known Member
Whenever I’ve gotten root rot here’s what I’ve done and it seems to help a lot:
Try drenching the medium with a full strength nute solution with the addition of h202, 1 part (3%) h202, 7 parts full strength nutrient solution. Then wait for dry back when the pot gets lighter and repeat. The only thing is if you continue with h202 into mid flower it will affect taste so best to stop h202 before mid to late flowering.
 
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